Issue #170: replaced bibtex entry for IPMI paper with bibtex entry for arXiv paper in RTD doc index
Issue #170: replaced bibtex entry for IPMI paper with bibtex entry for arXiv paper in RTD doc index

NifTK/NiftyNet,NifTK/NiftyNet,NifTK/NiftyNet,NifTK/NiftyNet